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Proceedings Paper

NPS assessment of color medical displays using a monochromatic CCD camera
Author(s): Hans Roehrig; Xiliang Gu; Jiahua Fan
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Paper Abstract

This paper presents an approach to Noise Power Spectrum (NPS) assessment of color medical displays without using an expensive imaging colorimeter. The R, G and B color uniform patterns were shown on the display under study and the images were taken using a high resolution monochromatic camera. A colorimeter was used to calibrate the camera images. Synthetic intensity images were formed by the weighted sum of the R, G, B and the dark screen images. Finally the NPS analysis was conducted on the synthetic images. The proposed method replaces an expensive imaging colorimeter for NPS evaluation, which also suggests a potential solution for routine color medical display QA/QC in the clinical area, especially when imaging of display devices is desired.

Paper Details

Date Published: 6 March 2012
PDF: 7 pages
Proc. SPIE 8318, Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment, 83181Q (6 March 2012); doi: 10.1117/12.913749
Show Author Affiliations
Hans Roehrig, The Univ. of Arizona (United States)
Image Quality, LLC (United States)
Xiliang Gu, Image Quality, LLC (United States)
Jiahua Fan, GE Healthcare (United States)

Published in SPIE Proceedings Vol. 8318:
Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment
Craig K. Abbey; Claudia R. Mello-Thoms, Editor(s)

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